801
FNUS55 KBOU 192313
FWFBOU
FIRE WEATHER FORECAST FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
413 PM MST FRI DEC 19 2025
...RED FLAG WARNING FOR A PARTICULARLY DANGEROUS SITUATION IN
EFFECT UNTIL MIDNIGHT MST TONIGHT FOR THE FRONT RANGE FOOTHILLS
AND IMMEDIATELY ADJACENT PLAINS... FIRE WEATHER ZONES 215, 216 AND
239...
...RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR THE
REST OF THE I-25 CORRIDOR... FIRE ZONES 238, 240, 241, 242, AND
243...
DISCUSSION...TONIGHT AND SATURDAY
CRITICAL TO EXTREMELY
CRITICAL FIRE WEATHER CONDITIONS HAVE BEEN OBSERVED ACROSS THE
FOOTHILLS AND PORTIONS OF THE PLAINS INTO THE I-25 CORRIDOR TODAY.
THERE IS STILL A POCKET OF STRONGER GUSTS (65 TO 85 MPH)
OVERLAPPING CRITICAL RELATIVE HUMIDITY (9-17%). WE EXPECT THESE
CONDITIONS TO GRADUALLY IMPROVE OVER THE NEXT FEW HOURS... WITH A
TRANSITION TO A BROADER AREA OF 35-60 MPH GUSTS ACROSS THE
FOOTHILLS AND I-25 CORRIDOR. MOST OF THE RED FLAG WARNING AREA
WILL BE SLOW TO SEE HUMIDITY RECOVER INTO THE EVENING HOURS BEFORE
SOME IMPROVEMENT AFTER MIDNIGHT. TOMORROW WILL BE COOLER WITH
BETTER MOISTURE ACROSS THE REGION BEHIND A WEAK COOL FRONT. SOME
GUSTY WINDS AND ELEVATED FIRE WEATHER CONDITIONS WILL BE POSSIBLE
SOUTH OF I-70. ACROSS THE MOUNTAINS, SNOW IS EXPECTED TO DEVELOP
TONIGHT AND CONTINUE INTO SATURDAY WITH LIGHT TO MODERATE
ACCUMULATIONS.
LONG TERM DISCUSSION...SATURDAY NIGHT THROUGH WEDNESDAY...SNOW
WILL TAPER OFF IN THE MOUNTAINS SATURDAY NIGHT, AND WE'LL
TRANSITION BACK TO A GENERALLY WARM AND DRY PERIOD AGAIN. THE
RIDGE AXIS LOOKS TO SET UP A LITTLE FURTHER NORTH THAN THE PAST
FEW DAYS, MEANING THE CHANCE OF HIGH WIND EVENTS IS LOWER THAN THE
PAST SEVERAL DAYS. STILL, THERE MAY BE PERIODS OF ELEVATED OR NEAR
CRITICAL FIRE WEATHER CONDITIONS EAST OF THE CONTINENTAL DIVIDE
DURING PERIODS OF STRONGER WINDS.
...THUNDERSTORMS IMPLY STRONG GUSTY ERRATIC WINDS...
...ALL SURFACE WINDS ARE 20-FOOT...10-MINUTE AVERAGED WINDS...
...CWR IS CHANCE OF WETTING RAIN - 0.10 INCH OR MORE LIQUID...
...24 HR TRENDS ARE BASED ON AVERAGES OVER THE RESPECTIVE ZONE
GROUPS AND MAY NOT MATCH THE ACTUAL FORECAST VALUES
SHOWN IN THOSE GROUPS...
COZ238-201200-
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-
INCLUDING FORT COLLINS, HEREFORD, LOVELAND, NUNN,
AND WEST PAWNEE GRASSLANDS
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
..HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 2300, THEN MOSTLY
CLOUDY(55-60%). PATCHY BLOWING DUST UNTIL 0200.
SLIGHT CHANCE OF RAIN SHOWERS AFTER 0300 UNTIL
0400, THEN CHANCE OF RAIN SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-39.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........65-75%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......BREEZY. WEST WINDS 17-27 MPH WITH GUSTS TO
AROUND 45 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......2500-3500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 2100, THEN 25-30 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 0400, THEN POOR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........39-43%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 9-17 MPH WITH GUSTS TO AROUND
30 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1500-2000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20-25 MPH UNTIL 1600, THEN AROUND 15
MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-28.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........84-94%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 4-8 MPH WITH GUSTS TO AROUND 20
MPH UNTIL 2300, THEN NORTHWEST.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2000, THEN SOUTH
UNTIL 2100, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-54.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........37-43%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......WEST WINDS 4-7 MPH UNTIL 1100, THEN SOUTHWEST
5-12 MPH WITH GUSTS TO AROUND 20 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 1000 FT AGL
UNTIL 1600, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 0800, THEN SOUTHWEST AROUND
10 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 60S. WEST WINDS
5-12 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS 4-8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. WEST WINDS 5-12 MPH.
COZ239-201200-
BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD
COUNTY-
INCLUDING ARVADA, BOULDER, GOLDEN, LAKEWOOD, AND LONGMONT
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
..HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(40-50%). PATCHY BLOWING DUST
UNTIL 0200. SLIGHT CHANCE OF RAIN SHOWERS AFTER
0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....40-46.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........45-55%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......WINDY. WEST WINDS 23-33 MPH WITH GUSTS TO
AROUND 55 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......2500-3500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 2000, THEN 30-35 MPH.
SMOKE DISPERSAL.....FAIR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 1400, THEN PARTLY
CLOUDY(50-60%). CHANCE OF RAIN SHOWERS UNTIL
1100, THEN SLIGHT CHANCE OF RAIN SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-59.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........24-34%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 10-20 MPH. GUSTS UP TO 45 MPH
DECREASING TO 30 MPH IN THE AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 0700, THEN 20-25 MPH UNTIL
1000, THEN 25-30 MPH UNTIL 1600, THEN NORTHWEST
AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-33.
24 HR TREND......10-15 DEGREES COOLER.
MAX HUMIDITY........72-82%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 1800, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1100, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....54-60.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........29-39%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1200, THEN SOUTHWEST AROUND
10 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 4-9 MPH.
MONDAY
WARMER. MOSTLY CLEAR. HIGHS IN THE UPPER 60S. SOUTHWEST
WINDS 7-14 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER
60S. SOUTHWEST WINDS 4-8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 6-13 MPH.
COZ240-201200-
NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND
ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY-
INCLUDING AURORA, BRIGHTON, CITY OF DENVER,
DENVER INTERNATIONAL AIRPORT, HIGHLANDS RANCH, LITTLETON,
AND PARKER
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(55-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%). PATCHY BLOWING DUST AFTER 2300
UNTIL 0200. SLIGHT CHANCE OF RAIN SHOWERS AFTER
0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-44.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........47-57%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 13-20 MPH UNTIL 2300,
THEN WEST 21-31 MPH. GUSTS UP TO 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH UNTIL 2200, THEN WEST 25-30
MPH UNTIL 0400, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF RAIN
SHOWERS UNTIL 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-58.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........24-30%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......NORTH WINDS 6-14 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1500-2000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0800, THEN NORTH
UNTIL 1100, THEN NORTHWEST UNTIL 1600, THEN
NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-35%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-33.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........68-78%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS 4-9 MPH UNTIL 2300, THEN SOUTH
4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1900, THEN LIGHT UNTIL
2300, THEN SOUTH AROUND 10 MPH UNTIL 2400, THEN
LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%) UNTIL 1100, THEN PARTLY
CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....57-63.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........24-30%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTHWEST WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 2000-3000 FT
AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1600, THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 5-12 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS 6-13 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS 4-9 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 7-14 MPH.
COZ241-201200-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
INCLUDING CASTLE ROCK, ELBERT, FONDIS, KIOWA, AND LARKSPUR
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 2000, THEN PARTLY
CLOUDY(35-45%). PATCHY BLOWING DUST AFTER 2300
UNTIL 0200.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....34-42.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........45-55%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 10-17 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2300, THEN WEST 18-28 MPH
WITH GUSTS TO AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......2000-3000 FT AGL UNTIL 2300, THEN BELOW 1000 FT
AGL UNTIL 2400, THEN 1000-2000 FT AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 2400, THEN 20-25 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-57.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........25-31%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 6-13 MPH UNTIL 1100, THEN EAST.
GUSTS UP TO 25 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 0800, THEN NORTHWEST 10-15
MPH UNTIL 1400, THEN 15-20 MPH UNTIL 1600, THEN
EAST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-32.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........71-81%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-14 MPH. GUSTS UP TO 20 MPH AFTER
MIDNIGHT.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 2300, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2200, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 1100, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-63.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........26-36%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTH WINDS 8-16 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900, THEN 2500-3500 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 8-15 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS 8-15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS 6-13 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 9-16 MPH.
COZ242-201200-
NORTHEAST WELD COUNTY-
INCLUDING BRIGGSDALE, EAST PAWNEE GRASSLANDS, GROVER,
PAWNEE BUTTES, RAYMER, AND STONEHAM
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%) UNTIL 2300, THEN MOSTLY
CLOUDY(55-60%). PATCHY BLOWING DUST AFTER 2300
UNTIL 0200. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS AFTER 0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-34.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........75-85%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......BREEZY. WEST WINDS 15-25 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 2100. 30-35 MPH AFTER
0100.
SMOKE DISPERSAL.....FAIR UNTIL 2300, THEN GOOD UNTIL 0400, THEN
FAIR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-49.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........38-42%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTH WINDS 9-16 MPH WITH GUSTS TO AROUND 35
MPH UNTIL 1100, THEN NORTHWEST 5-12 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 25-30 MPH UNTIL 0700. AROUND 10 MPH
AFTER 1600.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0200, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........87-97%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......SOUTH WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1800, THEN LIGHT
UNTIL 1900, THEN WEST AROUND 10 MPH UNTIL 2000,
THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-55.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........36-40%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 5-13 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1200, THEN 1000 FT AGL
UNTIL 1600, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. WEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 60S. WEST WINDS
4-8 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 50S.
SOUTH WINDS 4-8 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 4-9 MPH.
COZ243-201200-
CENTRAL AND SOUTH WELD COUNTY-
INCLUDING EATON, FORT LUPTON, GREELEY, AND ROGGEN
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%). SLIGHT CHANCE OF RAIN SHOWERS
AFTER 0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-40.
24 HR TREND......10-15 DEGREES WARMER.
MAX HUMIDITY........64-74%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......WEST WINDS 13-23 MPH WITH GUSTS TO AROUND 35
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....WEST 10-15 MPH UNTIL 2100. 25-30 MPH AFTER
2400.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(55-60%). SLIGHT CHANCE OF RAIN
SHOWERS. SLIGHT CHANCE OF SNOW SHOWERS AFTER
0800 UNTIL 1500.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....47-53.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........35-45%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 7-15 MPH. GUSTS UP TO 30 MPH IN
THE MORNING.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0600, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0800, THEN NORTH
10-15 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........90-100%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......EAST WINDS 4-9 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1900, THEN LIGHT UNTIL
2000, THEN SOUTHEAST AROUND 10 MPH UNTIL 2400,
THEN LIGHT.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0800, THEN MOSTLY
CLOUDY(55-60%) UNTIL 1400, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-57.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........35-43%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......WEST WINDS 4-7 MPH UNTIL 1100, THEN SOUTH 4-8
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1200, THEN 1000 FT AGL
UNTIL 1500, THEN BELOW 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
4-7 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. SOUTH
WINDS 4-8 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 50S.
SOUTH WINDS 4-7 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 4-9 MPH.
COZ244-201200-
MORGAN COUNTY-
INCLUDING BRUSH, FORT MORGAN, GOODRICH, AND WIGGINS
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%) UNTIL 0200, THEN MOSTLY
CLOUDY(50-60%). SLIGHT CHANCE OF RAIN SHOWERS
AFTER 0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-33.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........74-84%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......WEST WINDS 10-18 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 2300, THEN WEST 20-25
MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%). SLIGHT CHANCE OF RAIN
AND SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-50.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........42-46%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 6-13 MPH. GUSTS UP TO 25 MPH IN
THE MORNING.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0800, THEN NORTHEAST
10-15 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-28.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........94-98%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 2400, THEN BELOW 1000 FT AGL
UNTIL 0200, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 0400, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....54-59.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........35-41%.
24 HR TREND......7-10% DRIER.
20-FOOT WINDS.......SOUTH WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
4-8 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS 4-9 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE LOWER 60S.
SOUTH WINDS 4-8 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 4-9 MPH.
COZ245-201200-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
INCLUDING BENNETT, BYERS, DEER TRAIL, AND LEADER
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2300, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........63-73%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......WEST WINDS 10-18 MPH. GUSTS UP TO 25 MPH
INCREASING TO 35 MPH AFTER MIDNIGHT.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 2100, THEN WEST 15-20
MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF RAIN
AND SNOW SHOWERS AFTER 1100 UNTIL 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....48-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........34-44%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTH WINDS 6-13 MPH WITH GUSTS TO AROUND 20
MPH UNTIL 1100, THEN EAST 8-12 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0800, THEN NORTH
10-15 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-30.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........78-88%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTH WINDS 7-14 MPH. GUSTS UP TO 20 MPH AFTER
MIDNIGHT.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 2400, THEN BELOW 1000 FT AGL
UNTIL 0200, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2100, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-62.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........25-33%.
24 HR TREND......15-20% DRIER.
20-FOOT WINDS.......SOUTH WINDS 7-15 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 7-14 MPH.
MONDAY
PARTLY CLOUDY. HIGHS AROUND 70. SOUTHWEST WINDS
7-14 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. SOUTH WINDS 6-13 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 8-15 MPH.
COZ248-201200-
LOGAN COUNTY-
INCLUDING CROOK, MERINO, STERLING, AND PEETZ
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(55-60%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-31.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........82-90%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......WEST WINDS 11-19 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 0200, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....FAIR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF SNOW
SHOWERS AFTER 1100. SLIGHT CHANCE OF RAIN
SHOWERS AFTER 1200.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-46.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........41-47%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 7-14 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 1100, THEN SOUTHEAST 4-12 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 0900, THEN AROUND 10 MPH
UNTIL 1200, THEN WEST UNTIL 1600, THEN
SOUTHWEST.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0200, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-27.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........87-97%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......SOUTH WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 2200, THEN 1000 FT AGL
UNTIL 2400, THEN BELOW 1000 FT AGL UNTIL 0100,
THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-57.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........36-40%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......SOUTH WINDS 7-15 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 0700, THEN BELOW 1000 FT AGL
UNTIL 0900, THEN 1000-1500 FT AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
4-9 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WEST
WINDS 4-9 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE UPPER 50S.
SOUTH WINDS 4-8 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 4-9 MPH.
COZ249-201200-
WASHINGTON COUNTY-
INCLUDING AKRON, COPE, LAST CHANCE, AND OTIS
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2300, THEN PARTLY
CLOUDY(50-60%) UNTIL 0200, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-34.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........71-81%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......WEST WINDS 9-17 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL
UNTIL 2100, THEN 1500-2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2100, THEN WEST.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-48.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........43-47%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 6-14 MPH. GUSTS UP TO 20 MPH IN
THE MORNING.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15-20 MPH UNTIL 0800, THEN NORTH
10-15 MPH UNTIL 1600, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-30.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........82-90%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......SOUTH WINDS 7-15 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 2400, THEN BELOW 1000 FT AGL
UNTIL 0100, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH UNTIL 0100, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-57.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........35-39%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......SOUTH WINDS 10-18 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 40-50 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 8-15 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS AROUND 70. SOUTHWEST WINDS
6-13 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. SOUTH WINDS 5-12 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 7-14 MPH.
COZ250-201200-
SEDGWICK COUNTY-
INCLUDING JULESBURG, OVID, AND SEDGWICK
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-30.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........83-87%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......WEST WINDS 9-16 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1800, THEN 2500-3500 FT
AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 0400, THEN NORTH.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....41-45.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........41-45%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTH WINDS 6-13 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1100, THEN WEST 4-8 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 70-80 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....NORTH 10-15 MPH UNTIL 1000, THEN LIGHT UNTIL
1300, THEN WEST AROUND 10 MPH UNTIL 1600, THEN
LIGHT.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 0200, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 25.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........87-97%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......SOUTH WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0200, THEN 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1900, THEN SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(55-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-55.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........39-43%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTH WINDS 9-17 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST
WINDS 6-13 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 60S. WEST WINDS
5-12 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 50S. SOUTH WINDS 4-13 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 4-13 MPH.
COZ251-201200-
PHILLIPS COUNTY-
INCLUDING AMHERST, HAXTUN, AND HOLYOKE
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 28.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........85-89%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......WEST WINDS 8-16 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 2100, THEN 2000-3000 FT
AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 0400, THEN NORTHWEST.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-46.
24 HR TREND......20-25 DEGREES COOLER.
MIN HUMIDITY........42-46%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 6-13 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 1100, THEN EAST 4-7 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 65-75 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....NORTH 15-20 MPH UNTIL 0900, THEN NORTHEAST
AROUND 10 MPH UNTIL 1100, THEN LIGHT UNTIL
1400, THEN WEST AROUND 10 MPH UNTIL 1600, THEN
LIGHT.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(30-40%) UNTIL 2300, THEN MOSTLY
CLOUDY(50-60%) UNTIL 0200, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 25.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........86-92%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......SOUTH WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1900, THEN BELOW 1000 FT AGL
UNTIL 2200, THEN 1000 FT AGL UNTIL 2400, THEN
BELOW 1000 FT AGL UNTIL 0100, THEN 1000 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS UNTIL 1800, THEN SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 0800, THEN MOSTLY
CLOUDY(55-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-55.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........38-42%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......SOUTH WINDS 10-18 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1000-2000 FT AGL.
TRANSPORT WINDS.....SOUTH 20-25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST
WINDS 5-12 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WEST
WINDS 4-13 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 50S. SOUTH WINDS 4-9 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 4-13 MPH.
COZ246-201200-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
INCLUDING AGATE, HUGO, LIMON, AND MATHESON
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2300, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-35.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........62-72%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......WEST WINDS 8-16 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000-2000 FT AGL UNTIL 2100, THEN BELOW 1000 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2200, THEN WEST.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......15-20 DEGREES COOLER.
MIN HUMIDITY........34-44%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTH WINDS 7-14 MPH UNTIL 1100, THEN EAST.
GUSTS UP TO 20 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 0800, THEN NORTH
UNTIL 1300, THEN NORTHWEST UNTIL 1400, THEN
NORTHEAST UNTIL 1600, THEN EAST.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-29.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........83-93%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-14 MPH WITH GUSTS TO AROUND 20
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 40-50 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 2400, THEN BELOW 1000 FT AGL
UNTIL 0200, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 2100, THEN SOUTH
15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-58.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........32-42%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......SOUTH WINDS 9-17 MPH WITH GUSTS TO AROUND 30
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 35-45 MPH.
MIXING HEIGHT.......1000-1500 FT AGL.
TRANSPORT WINDS.....SOUTH 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 9-16 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS AROUND 70. SOUTHWEST WINDS
8-15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. SOUTH WINDS 7-14 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S. SOUTHWEST WINDS 9-16 MPH.
COZ247-201200-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
INCLUDING FORDER, KARVAL, KUTCH, AND PUNKIN CENTER
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(60-65%) UNTIL 2300, THEN PARTLY
CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-37.
24 HR TREND......10-15 DEGREES WARMER.
MAX HUMIDITY........50-60%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......WEST WINDS 9-17 MPH WITH GUSTS TO AROUND 25
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......1000-2000 FT AGL UNTIL 2100, THEN BELOW 1000 FT
AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 0200, THEN 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-54.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........30-40%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......NORTH WINDS 7-14 MPH UNTIL 1100, THEN EAST 8-15
MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000, THEN 1000-2000 FT
AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 0900. SOUTHEAST
AFTER 1400.
SMOKE DISPERSAL.....POOR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 0200, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-25.
24 HR TREND......10-15 DEGREES COOLER.
MAX HUMIDITY........89-99%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS 5-13 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 40-50 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 2000, THEN BELOW 1000 FT AGL
UNTIL 0400, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 10-15 MPH UNTIL 0100, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....48-52.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........39-45%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......SOUTH WINDS 6-14 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 35-45 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 0700, THEN BELOW 1000 FT AGL
UNTIL 0900, THEN 1000-1500 FT AGL.
TRANSPORT WINDS.....SOUTH 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS 7-14 MPH.
MONDAY
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 60S. WEST
WINDS 8-15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS 4-9 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. SOUTHWEST WINDS 8-15 MPH.
COZ215-201200-
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
INCLUDING ESTES PARK, GLENDEVEY, LARAMIE RIVER VALLEY, NEDERLAND,
AND RED FEATHER LAKES
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
..HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). CHANCE OF SNOW SHOWERS
AND SLIGHT CHANCE OF RAIN SHOWERS UNTIL 2300,
THEN SNOW SHOWERS LIKELY AND CHANCE OF RAIN
SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-40.
24 HR TREND......2-4 DEGREES WARMER.
MAX HUMIDITY........64-74%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WINDY. WEST WINDS 24-34 MPH WITH GUSTS TO
AROUND 55 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 24-34 MPH WITH GUSTS TO
AROUND 60 MPH.
CWR.................0 PERCENT INCREASING TO 20 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 70-80 MPH.
MIXING HEIGHT.......4000-5000 FT AGL.
TRANSPORT WINDS.....WEST 30-35 MPH.
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900, THEN GOOD.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY UNTIL 1100.
CHANCE OF RAIN SHOWERS. CHANCE OF SNOW SHOWERS
AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....38-48.
24 HR TREND......7-10 DEGREES COOLER.
MIN HUMIDITY........43-53%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 13-23 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....WEST WINDS 13-23 MPH WITH GUSTS TO AROUND
40 MPH.
CWR.................30 PERCENT DECREASING TO 20 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1100. AROUND 25 MPH AFTER
1600.
SMOKE DISPERSAL.....FAIR UNTIL 1200, THEN GOOD.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2000, THEN PARTLY
CLOUDY(40-50%) UNTIL 2300, THEN MOSTLY
CLOUDY(50-60%) UNTIL 0200, THEN PARTLY
CLOUDY(40-50%). SLIGHT CHANCE OF SNOW SHOWERS
UNTIL 2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-32.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........68-78%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 5-13 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGES/UPR SLOPES....WEST WINDS 5-13 MPH WITH GUSTS TO AROUND
25 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 0800, THEN MOSTLY
CLOUDY(55-60%) UNTIL 1100, THEN PARTLY
CLOUDY(40-50%) UNTIL 1400, THEN MOSTLY
CLOUDY(50-60%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-55.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........39-49%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO
AROUND 35 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH UNTIL 1300, THEN WEST 20-25
MPH.
SMOKE DISPERSAL.....FAIR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS
10-17 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST WINDS
13-23 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WEST WINDS 6-13 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WEST WINDS 9-16 MPH.
COZ216-201200-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
INCLUDING BAILEY, CENTRAL CITY, EVERGREEN, GEORGETOWN,
IDAHO SPRINGS, NORTHERN RAMPART RANGE, TARRYALL, AND WESTCREEK
413 PM MST FRI DEC 19 2025
..RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT
..HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF SNOW
SHOWERS AFTER 2200 UNTIL 0400. SLIGHT CHANCE OF
RAIN SHOWERS AFTER 0300. CHANCE OF SNOW SHOWERS
AFTER 0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....34-44.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........41-51%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 18-28 MPH WITH GUSTS TO
AROUND 50 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 19-29 MPH WITH GUSTS TO
AROUND 55 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 75-85 MPH.
MIXING HEIGHT.......4000-5000 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 0300, THEN 30-35 MPH.
SMOKE DISPERSAL.....GOOD.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(50-60%). CHANCE OF SNOW SHOWERS
UNTIL 1100. SLIGHT CHANCE OF RAIN SHOWERS UNTIL
1400. SLIGHT CHANCE OF SNOW SHOWERS AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-56.
24 HR TREND......7-10 DEGREES COOLER.
MIN HUMIDITY........24-34%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 12-22 MPH. GUSTS UP TO 45 MPH
DECREASING TO 30 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 12-22 MPH. GUSTS UP TO
45 MPH DECREASING TO 30 MPH IN THE
AFTERNOON.
CWR.................10 PERCENT DECREASING TO 0 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1100, THEN 30-35 MPH UNTIL
1600, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1000, THEN VERY GOOD UNTIL 1600,
THEN FAIR.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY(30-40%).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-35.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........55-65%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 4-9 MPH. GUSTS UP TO 20
MPH IN THE EVENING.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 4-12 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%).
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-60.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........25-35%.
24 HR TREND......4-7% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 5-13 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 6-14 MPH WITH GUSTS TO
AROUND 25 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 1200, THEN WEST 15-20
MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN FAIR.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. SOUTHWEST WINDS
10-17 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 60S. WEST WINDS
13-20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER
50S. SOUTHWEST WINDS 7-14 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS 10-17 MPH.
COZ211-201200-
JACKSON COUNTY BELOW 9000 FEET-
INCLUDING GOULD, NORTH PARK, RAND, SPICER, AND WALDEN
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL
2300, THEN SNOW SHOWERS. PATCHY BLOWING SNOW
AFTER 0400.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-32.
24 HR TREND......2-4 DEGREES WARMER.
MAX HUMIDITY........82-88%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......WINDY. WEST WINDS 20-30 MPH WITH GUSTS TO
AROUND 45 MPH.
CWR.................10 PERCENT INCREASING TO 50 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 70-80 MPH.
MIXING HEIGHT.......4000-5000 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH.
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900, THEN GOOD.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW UNTIL 1600.
SNOW SHOWERS UNTIL 1100. SNOW SHOWERS LIKELY
AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....35-39.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........60-70%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......WEST WINDS 13-23 MPH WITH GUSTS TO AROUND 35
MPH.
CWR.................40 PERCENT DECREASING TO 20 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1600, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....FAIR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-27.
24 HR TREND......4-7 DEGREES COOLER.
MAX HUMIDITY........84-94%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 6-14 MPH WITH GUSTS TO AROUND
20 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2100, THEN SOUTH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF SNOW
SHOWERS UNTIL 1400. SLIGHT CHANCE OF RAIN
SHOWERS AFTER 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-46.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........53-63%.
24 HR TREND......10-15% DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 11-21 MPH WITH GUSTS TO AROUND
30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH.
SMOKE DISPERSAL.....FAIR.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS 14-24 MPH.
MONDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
13-23 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 40S. SOUTH WINDS 8-15 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. SOUTH WINDS
12-18 MPH.
COZ213-201200-
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
INCLUDING DILLON, FRASER, GRANBY, GRAND LAKE,
GREEN MOUNTAIN RESERVOIR, HOT SULPHUR SPRINGS, KREMMLING,
MIDDLE PARK, AND WILLIAMS FORK RESERVOIR
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL
2300, THEN SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-33.
24 HR TREND......7-10 DEGREES WARMER.
MAX HUMIDITY........81-91%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......WEST WINDS 14-24 MPH WITH GUSTS TO AROUND 35
MPH.
CWR.................10 PERCENT INCREASING TO 20 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 75-85 MPH.
MIXING HEIGHT.......5000-6000 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH.
SMOKE DISPERSAL.....GOOD.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS UNTIL 1100, THEN
SNOW SHOWERS LIKELY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....36-42.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........54-64%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......WEST WINDS 10-20 MPH. GUSTS UP TO 35 MPH
DECREASING TO 25 MPH IN THE AFTERNOON.
CWR.................30 PERCENT DECREASING TO 20 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1200, THEN 25-30 MPH UNTIL
1500, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1600, THEN FAIR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........85-95%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 4-9 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). SLIGHT CHANCE OF SNOW
SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS AFTER
1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-48.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........49-59%.
24 HR TREND......7-10% DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 5-13 MPH. GUSTS UP TO 20 MPH IN
THE AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH UNTIL 1200, THEN 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
7-14 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
5-12 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE UPPER
40S. SOUTH WINDS 4-8 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 40S. SOUTHWEST
WINDS 4-9 MPH.
COZ214-201200-
CENTRAL AND SOUTHEAST PARK COUNTY-
INCLUDING ELEVEN MILE CANYON RESERVOIR, FAIRPLAY, GUFFEY,
HARTSEL, LAKE GEORGE, AND SOUTH PARK
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY(35-45%). SLIGHT CHANCE OF SNOW
SHOWERS AFTER 0100.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-34.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........47-57%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 16-26 MPH WITH GUSTS TO
AROUND 40 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 18-28 MPH WITH GUSTS TO
AROUND 45 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 75-85 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
SMOKE DISPERSAL.....GOOD.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%). SLIGHT CHANCE OF SNOW
SHOWERS UNTIL 1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....40-50.
24 HR TREND......4-7 DEGREES COOLER.
MIN HUMIDITY........30-40%.
24 HR TREND......20-25% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 14-24 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 15-25 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 0900, THEN 35-40 MPH UNTIL
1600, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 0900, THEN VERY GOOD UNTIL 1100,
THEN EXCELLENT UNTIL 1500, THEN VERY GOOD UNTIL
1600, THEN GOOD.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-29.
24 HR TREND......7-10 DEGREES COOLER.
MAX HUMIDITY........68-78%.
24 HR TREND......10-15% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 5-13 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
RIDGES/UPR SLOPES....WEST WINDS 5-13 MPH WITH GUSTS TO AROUND
25 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 45-55 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....WEST 10-15 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100, THEN PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-53.
24 HR TREND......2-4 DEGREES WARMER.
MIN HUMIDITY........32-40%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 8-16 MPH. GUSTS UP TO 20
MPH INCREASING TO 30 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 9-17 MPH WITH GUSTS TO
AROUND 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 0800, THEN BELOW 1000 FT AGL
UNTIL 0900, THEN 2500-3500 FT AGL.
TRANSPORT WINDS.....WEST 15-20 MPH UNTIL 1100, THEN 25-30 MPH UNTIL
1600, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WEST WINDS
12-18 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE MID 50S. WEST WINDS
13-20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 50S. WEST WINDS 5-12 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS AROUND
50. SOUTHWEST WINDS 10-17 MPH.
COZ218-201200-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
INCLUDING CAMERON PASS, LARAMIE AND MEDICINE BOW MOUNTAINS,
RABBIT EARS RANGE, ROCKY MOUNTAIN NATIONAL PARK,
AND WILLOW CREEK PASS
413 PM MST FRI DEC 19 2025
..HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW. CHANCE OF
SNOW SHOWERS UNTIL 2200. SNOW SHOWERS LIKELY
AFTER 2200 UNTIL 0300, THEN SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....20-30.
24 HR TREND......4-7 DEGREES WARMER.
MAX HUMIDITY........84-94%.
24 HR TREND......15-20% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WINDY. WEST WINDS 25-35 MPH WITH GUSTS TO
AROUND 55 MPH.
RIDGES/UPR SLOPES....VERY WINDY. WEST WINDS 24-39 MPH WITH
GUSTS TO AROUND 65 MPH.
CWR.................10 PERCENT INCREASING TO 60 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 75-85 MPH.
MIXING HEIGHT.......4500-5500 FT AGL.
TRANSPORT WINDS.....WEST 30-35 MPH.
SMOKE DISPERSAL.....VERY GOOD UNTIL 2000, THEN GOOD.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW UNTIL
1500PATCHY BLOWING SNOW AFTER 1500. SNOW
SHOWERS UNTIL 1400. SNOW SHOWERS LIKELY AFTER
1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....25-35.
24 HR TREND......7-10 DEGREES COOLER.
MIN HUMIDITY........67-77%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 16-26 MPH. GUSTS UP TO
45 MPH DECREASING TO 35 MPH IN THE
AFTERNOON.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 16-26 MPH. GUSTS UP TO
55 MPH DECREASING TO 45 MPH IN THE
AFTERNOON.
CWR.................70 PERCENT DECREASING TO 40 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 30-35 MPH UNTIL 1600, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 1600, THEN POOR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW UNTIL 1900.
CHANCE OF SNOW SHOWERS UNTIL 2300, THEN SLIGHT
CHANCE OF SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....19-27.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........82-92%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 10-18 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGES/UPR SLOPES....BREEZY. SOUTHWEST WINDS 13-23 MPH WITH
GUSTS TO AROUND 40 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY(55-60%). SLIGHT CHANCE OF SNOW
SHOWERS. PATCHY BLOWING SNOW AFTER 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....32-42.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........58-68%.
24 HR TREND......7-10% DRIER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 14-24 MPH WITH GUSTS TO
AROUND 35 MPH.
RIDGES/UPR SLOPES....BREEZY. SOUTHWEST WINDS 15-25 MPH. GUSTS
UP TO 35 MPH INCREASING TO 45 MPH IN THE
AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 1100, THEN 25-30 MPH.
SMOKE DISPERSAL.....FAIR.
SUNDAY NIGHT
BREEZY. PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST
WINDS 15-25 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS
13-23 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS 8-15 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS
IN THE UPPER 20S. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS
12-18 MPH.
COZ212-201200-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-
INCLUDING BERTHOUD PASS, BRECKENRIDGE,
EAST SLOPES MOSQUITO RANGE, EAST SLOPES SOUTHERN GORE RANGE,
EISENHOWER TUNNEL, INDIAN PEAKS, KENOSHA MOUNTAINS,
MOUNT BLUE SKY, PUMA HILLS, TARRYALL MOUNTAINS,
WILLIAMS FORK MOUNTAINS, AND WINTER PARK
413 PM MST FRI DEC 19 2025
..HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%). CHANCE OF SNOW SHOWERS
UNTIL 0300. SNOW SHOWERS LIKELY AFTER 0300.
PATCHY BLOWING SNOW AFTER 2100.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....22-32.
24 HR TREND......2-4 DEGREES WARMER.
MAX HUMIDITY........69-79%.
24 HR TREND......2-4% DRIER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WINDY. WEST WINDS 22-32 MPH WITH GUSTS TO
AROUND 50 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 23-38 MPH WITH GUSTS TO
AROUND 60 MPH.
CWR.................10 PERCENT INCREASING TO 20 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 75-85 MPH.
MIXING HEIGHT.......5000-5500 FT AGL.
TRANSPORT WINDS.....WEST 30-35 MPH.
SMOKE DISPERSAL.....VERY GOOD.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY(60-65%). PATCHY BLOWING SNOW
UNTIL 1300PATCHY BLOWING SNOW AFTER 1300. SNOW
SHOWERS UNTIL 1100. SNOW SHOWERS LIKELY AFTER
1100.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....28-38.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........52-62%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 18-28 MPH WITH GUSTS TO
AROUND 50 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 19-29 MPH. GUSTS UP TO
60 MPH DECREASING TO 50 MPH IN THE
AFTERNOON.
CWR.................40 PERCENT DECREASING TO 20 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......5000-6000 FT AGL.
TRANSPORT WINDS.....WEST 30-35 MPH UNTIL 1600, THEN AROUND 25 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 0900, THEN VERY GOOD UNTIL 1600,
THEN GOOD.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2300, THEN PARTLY
CLOUDY(40-50%). PATCHY BLOWING SNOW. CHANCE OF
SNOW SHOWERS UNTIL 2300. SLIGHT CHANCE OF SNOW
SHOWERS AFTER 2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....18-28.
24 HR TREND......LITTLE CHANGE.
MAX HUMIDITY........72-82%.
24 HR TREND......2-4% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 10-18 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 12-22 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................10 PERCENT DECREASING TO 0 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1400, THEN MOSTLY
CLOUDY(50-60%). PATCHY BLOWING SNOW. SLIGHT
CHANCE OF SNOW SHOWERS.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....34-44.
24 HR TREND......7-10 DEGREES WARMER.
MIN HUMIDITY........47-57%.
24 HR TREND......4-7% DRIER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 12-20 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....BREEZY. WEST WINDS 14-24 MPH WITH GUSTS TO
AROUND 40 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....WEST 20-25 MPH UNTIL 1200, THEN 25-30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. WEST WINDS
14-24 MPH.
MONDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 40S. WEST WINDS
14-24 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE LOWER
40S. WEST WINDS 7-14 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS
IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST WINDS 12-18 MPH.
COZ217-201200-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
INCLUDING EAST SLOPES PARK AND NORTHERN GORE RANGES, GORE PASS,
AND RABBIT EARS PASS
413 PM MST FRI DEC 19 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL
2200. SNOW SHOWERS LIKELY AFTER 2200 UNTIL
2300, THEN SNOW SHOWERS. BLOWING SNOW AFTER
2000 UNTIL 2100, THEN PATCHY BLOWING SNOW UNTIL
2300. BLOWING SNOW AFTER 2300.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-31.
24 HR TREND......2-4 DEGREES WARMER.
MAX HUMIDITY........85-95%.
24 HR TREND......25-35% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...BREEZY. WEST WINDS 20-30 MPH WITH GUSTS TO
AROUND 45 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 24-34 MPH. GUSTS UP TO
60 MPH INCREASING TO 70 MPH AFTER
MIDNIGHT.
CWR.................20 PERCENT INCREASING TO 60 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 70-80 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
SMOKE DISPERSAL.....VERY GOOD UNTIL 1900, THEN FAIR.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. BLOWING SNOW UNTIL 1000PATCHY
BLOWING SNOW AFTER 1000. SNOW SHOWERS UNTIL
1400. SNOW SHOWERS LIKELY AFTER 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....27-37.
24 HR TREND......10-15 DEGREES COOLER.
MIN HUMIDITY........68-78%.
24 HR TREND......35-50% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...WEST WINDS 14-24 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGES/UPR SLOPES....WINDY. WEST WINDS 15-25 MPH. GUSTS UP TO
50 MPH DECREASING TO 40 MPH IN THE
AFTERNOON.
CWR.................70 PERCENT DECREASING TO 50 PERCENT IN THE
AFTERNOON.
15K FT MSL WINDS....WEST 60-70 MPH.
MIXING HEIGHT.......3500-4500 FT AGL.
TRANSPORT WINDS.....WEST 25-30 MPH UNTIL 1600, THEN AROUND 20 MPH.
SMOKE DISPERSAL.....FAIR.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. PATCHY
BLOWING SNOW AFTER 0100.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-27.
24 HR TREND......2-4 DEGREES COOLER.
MAX HUMIDITY........86-96%.
24 HR TREND......LITTLE CHANGE.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 7-15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGES/UPR SLOPES....SOUTHWEST WINDS 11-21 MPH WITH GUSTS TO
AROUND 35 MPH.
CWR.................20 PERCENT DECREASING TO 10 PERCENT AFTER
MIDNIGHT.
15K FT MSL WINDS....WEST 50-60 MPH.
MIXING HEIGHT.......1500-2500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15-20 MPH.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW. CHANCE OF
SNOW SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS
AFTER 1400.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-43.
24 HR TREND......4-7 DEGREES WARMER.
MIN HUMIDITY........65-75%.
24 HR TREND......7-10% WETTER.
20-FOOT WINDS.......
VALLEYS/LWR SLOPES...SOUTHWEST WINDS 12-22 MPH WITH GUSTS TO
AROUND 35 MPH.
RIDGES/UPR SLOPES....BREEZY. SOUTHWEST WINDS 15-25 MPH. GUSTS
UP TO 40 MPH INCREASING TO 50 MPH IN THE
AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....WEST 55-65 MPH.
MIXING HEIGHT.......3000-4000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20-25 MPH UNTIL 1300, THEN 25-30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 1300, THEN FAIR.
SUNDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS AROUND 30. SOUTHWEST WINDS 14-24 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. HIGHS IN
THE LOWER 40S. SOUTHWEST WINDS 13-20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS 7-14 MPH.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE
UPPER 20S. HIGHS AROUND 40. SOUTHWEST WINDS 12-18 MPH.
OUTLOOK 6 TO 10 DAYS
TEMPERATURES ABOVE NORMAL AND PRECIPITATION ABOVE NORMAL.
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